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首页> 外文会议>Annual Conference of the IEEE Industrial Electronics Society >A Review and Modeling of Different Droop Control Based Methods for Battery State of the Charge Balancing in DC Microgrids
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A Review and Modeling of Different Droop Control Based Methods for Battery State of the Charge Balancing in DC Microgrids

机译：基于DC微电普林电池平衡电池状态的基于不同下垂控制的综述与建模

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摘要

Nowadays, DC microgrids by linking DC sources such as renewable resources directly to the DC loads and offering higher efficiency due to the elimination of conversion stages are gaining more and more popularity. In DC microgrids with renewable resources, there are stochastic behavior and uncertainties. Thus, energy storage use is unavoidable. Droop control as a well known method is used as the basis of the power sharing among different parallel voltage sources and battery energy storage systems (BESSs). In order to extend the lifetime of BESSs and avoid the overuse of a certain battery, the State of the Charge (SoC) of BESSs should be balanced. This paper presents a review on three different droop control based methods for balancing SoCs of different BESSs in DC microgrids. Moreover, the paper proposes a new droop control method for SoC balancing to overcome the drawbacks of the mentioned methods. The mathematical model of these different methods are derived using small signal state space modeling for a Photovoltaic (PV) grid-interactive DC microgrid consisting of two BESSs. Then, a comparison study has been performed for the mentioned four methods using MATLAB/Simulink.
机译：如今，通过将DC源（例如可再生资源）直接链接到DC负载，并且由于消除转换阶段而提供更高的效率，因此越来越受欢迎。在具有可再生资源的DC微电网中，存在随机行为和不确定性。因此，能量存储使用是不可避免的。作为众所周知的方法使用下垂控制作为不同并联电压源和电池能量存储系统（BESSS）之间的功率共享的基础。为了延长贝塞斯的寿命并避免过度使用某个电池，应该平衡贝塞尔的充电状态（SoC）。本文介绍了三种不同下垂控制的基于方法，用于平衡DC微电网中不同贝丝的SOC。此外，本文提出了一种用于SoC平衡的新的下垂控制方法，以克服所述方法的缺点。这些不同方法的数学模型使用小信号状态空间建模导出，用于由两个贝塞组成的光伏（PV）网格交互式DC微电网。然后，已经对使用MATLAB / Simulink的四种方法进行了比较研究。

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